3586326 Serpentine Alternator Water Pump Belt for Volvo Penta 4.3GXi-E 4.3GXi-EF 4.3OSi-E 4.3OSi-EF 5.0GXi-E 5.0GXi-EF 5.0OSi-E 5.0OSi-EF 5.7Gi-E 5.7Gi-EF 5.7GiI-E 5.7GXi-F 5.7GXi-FF 5.7GXiI-F 5.7OSi-D 5.7OSi-DF 5.7OSXi-D 5.7OSXi-DF | JLM Marine

Serpentine Alternator Water Pump Belt – Fits Volvo Penta 4.3L, 5.0L & 5.7L Marine Engines

This serpentine belt is designed for Volvo Penta marine engines in the 4.3L, 5.0L, and 5.7L series, driving both the alternator and water pump. It provides reliable power transfer for critical engine accessories across a wide range of Gi, GXi, and OSi models.

This belt directly replaces OEM part number 3586326, ensuring proper fit and function for your Volvo Penta inboard or sterndrive engine.

• Fits 4.3L, 5.0L, and 5.7L Volvo Penta marine engines
• Drives alternator and water pump simultaneously
• Direct replacement for OEM #3586326

Part Number Cross-Reference

Use this table to confirm the OEM part number for your Volvo Penta engine:

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

Your purchase includes:

• 1 × Serpentine Drive Belt (OEM #3586326)

Installation Guide

1. Disconnect the negative battery cable to ensure safety during installation.
2. Locate the belt tensioner on your Volvo Penta engine and note the belt routing path before removal.
3. Use a wrench or socket to rotate the tensioner pulley, releasing tension on the old belt.
4. Slip the old serpentine belt off the pulleys and remove it from the engine compartment.
5. Inspect all pulleys for wear, cracks, or debris; clean or replace as needed.
6. Route the new serpentine belt around each pulley following the original path (alternator, water pump, crankshaft, and tensioner).
7. Rotate the tensioner pulley again and seat the new belt fully onto all pulleys.
8. Release the tensioner slowly, ensuring the belt sits centered on each pulley groove.
9. Visually confirm proper belt alignment and tension before reconnecting the battery.
10. Start the engine and listen for unusual noises; the belt should run smoothly without squealing or slipping.

Troubleshooting & FAQ

Q: How do I confirm this belt fits my Volvo Penta engine?
A: Cross-reference your engine model with the compatibility table above. If your model is listed (4.3GXi-E/EF, 4.3OSi-E/EF, 5.0GXi-E/EF, 5.0OSi-E/EF, or any 5.7L variant shown), and your original belt is stamped with OEM #3586326, this replacement will fit.

Q: How often should I replace the serpentine belt?
A: Volvo Penta recommends inspecting the belt every 100 hours of operation or annually. Replace it if you notice cracking, fraying, glazing, or squealing, typically every 2–3 years or 300–400 hours under normal conditions.

Q: What are common signs that my serpentine belt is failing?
A: Watch for squealing or chirping noises during startup or acceleration, visible cracks or glazing on the belt surface, poor alternator charging (dim lights, low battery), or engine overheating due to water pump slippage.

Q: Can I install this belt myself, or do I need a mechanic?
A: Installation is straightforward if you have basic hand tools and can access the engine compartment. However, proper belt routing and tensioner operation are critical—professional installation is recommended if you are unfamiliar with serpentine belt replacement.

Q: Is this an OEM belt or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.